package cn.itcast.service;

import cn.hutool.core.date.DateTime;

import cn.hutool.core.date.DateUtil;
import cn.itcast.MemberDao;
import cn.itcast.OrderDao;
import cn.itcast.OrderService;
import cn.itcast.OrdersettingDao;
import cn.itcast.constant.MessageConstant;
import cn.itcast.pojo.Member;
import cn.itcast.pojo.Order;
import cn.itcast.pojo.OrderSetting;
import cn.itcast.pojo.Result;
import com.alibaba.dubbo.config.annotation.Service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderDao orderDao;
    @Autowired
    private MemberDao memberDao;
    @Autowired
    private OrdersettingDao ordersettingDao;
    @Override
    public Result order(Map map) {
   /**
    * *
    * 1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约

    2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约

    3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约

    4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约

    5、预约成功，更新当日的已预约人数

    */
      String orderDate=  (String)map.get("orderDate");
        DateTime date = DateUtil.parseDate(orderDate);
       OrderSetting orderSetting = ordersettingDao.findByOrderDate(date);
        if (orderSetting==null){
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);

        }
        //检查预约日期是否预约已满
        int number = orderSetting.getNumber();//可预约人数
        int reservations = orderSetting.getReservations();//已预约人数
        if(reservations >= number){
            //预约已满，不能预约
            return new Result(false,MessageConstant.ORDER_FULL);
        }
        //检查当前用户是否为会员，根据手机号判断
        String telephone = (String) map.get("telephone");
        Member member = memberDao.findByTelephone(telephone);
        //防止重复预约
        if(member != null){
            Integer memberId = member.getId();
            int setmealId = Integer.parseInt((String) map.get("setmealId"));
            Order order = new Order(memberId,date,null,null,setmealId);
            List<Order> list = orderDao.findByCondition(order);
            if(list != null && list.size() > 0){
                //已经完成了预约，不能重复预约
                return new Result(false,MessageConstant.HAS_ORDERED);
            }
        }
        //可以预约，设置预约人数加一
        orderSetting.setReservations(orderSetting.getReservations()+1);
        ordersettingDao.editReservationsByOrderDate(orderSetting);

        if(member == null){
            //当前用户不是会员，需要添加到会员表
            member = new Member();
            member.setName((String) map.get("name"));
            member.setPhoneNumber(telephone);
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());
            memberDao.add(member);
        }

        //保存预约信息到预约表
        Order order = new Order(member.getId(),
                date,
                (String)map.get("orderType"),
                Order.ORDERSTATUS_NO,
                Integer.parseInt((String) map.get("setmealId")));
        orderDao.add(order);

        return new Result(true,MessageConstant.ORDER_SUCCESS,order);
    }

    @Override
    public Map findById4Detail(Integer id) {
        Map map = orderDao.findById4Detail(id);
    return map;
    }
}